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GB2291762B - Mobile telephone - Google Patents

Mobile telephone

Info

Publication number
GB2291762B
GB2291762B GB9415066A GB9415066A GB2291762B GB 2291762 B GB2291762 B GB 2291762B GB 9415066 A GB9415066 A GB 9415066A GB 9415066 A GB9415066 A GB 9415066A GB 2291762 B GB2291762 B GB 2291762B
Authority
GB
United Kingdom
Prior art keywords
mobile telephone
telephone
mobile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9415066A
Other versions
GB9415066D0 (en
GB2291762A (en
Inventor
Adrian Philip Nash
Richard Stephens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to GB9415066A priority Critical patent/GB2291762B/en
Publication of GB9415066D0 publication Critical patent/GB9415066D0/en
Priority to US08/505,086 priority patent/US5983116A/en
Priority to EP95305168A priority patent/EP0695041A3/en
Publication of GB2291762A publication Critical patent/GB2291762A/en
Application granted granted Critical
Publication of GB2291762B publication Critical patent/GB2291762B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/22—Static coding
    • H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
GB9415066A 1994-07-26 1994-07-26 Mobile telephone Expired - Fee Related GB2291762B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9415066A GB2291762B (en) 1994-07-26 1994-07-26 Mobile telephone
US08/505,086 US5983116A (en) 1994-07-26 1995-07-21 Radio telephone having analog key signal output for power conservation
EP95305168A EP0695041A3 (en) 1994-07-26 1995-07-24 Keypad for radio telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9415066A GB2291762B (en) 1994-07-26 1994-07-26 Mobile telephone

Publications (3)

Publication Number Publication Date
GB9415066D0 GB9415066D0 (en) 1994-09-14
GB2291762A GB2291762A (en) 1996-01-31
GB2291762B true GB2291762B (en) 1999-04-07

Family

ID=10758905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9415066A Expired - Fee Related GB2291762B (en) 1994-07-26 1994-07-26 Mobile telephone

Country Status (3)

Country Link
US (1) US5983116A (en)
EP (1) EP0695041A3 (en)
GB (1) GB2291762B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619196A (en) * 1995-12-28 1997-04-08 Universal Electronics Inc. Single wire keyboard encode and decode circuit
SE508136C2 (en) 1996-12-19 1998-08-31 Ericsson Telefon Ab L M Keyboard reading device and method
US6977648B1 (en) * 1997-11-13 2005-12-20 Qualcomm Incorporated System and method for providing back-lighting to a keypad
US5898238A (en) * 1998-01-12 1999-04-27 Ford Motor Company Wakeup generator for use with a multi-position resistor ladder switch
FI105420B (en) 1998-12-04 2000-08-15 Nokia Mobile Phones Ltd Input means for producing input signals for an electronic device
TW439366B (en) * 1999-11-19 2001-06-07 Darfon Electronics Corp Key scanning circuit
FI108096B (en) * 1999-12-28 2001-11-15 Nokia Mobile Phones Ltd Capacitively connected keypad structure
US6784810B2 (en) 2001-05-07 2004-08-31 National Semiconductor Corporation A/D converter with comparators and low-power detection mode for resistive matrix keyboards
JP2004158809A (en) * 2002-09-13 2004-06-03 Auto Network Gijutsu Kenkyusho:Kk Input receiving device and input receiving method
US20050068303A1 (en) * 2003-09-30 2005-03-31 Inventec Appliances Corp. Key inputting circuit of electronic device
US8441972B2 (en) * 2005-11-16 2013-05-14 Qualcomm Incorporated WCDMA device and method for discontinuous reception for power saving in idle mode and flexible monitoring of neighboring cells
US8866642B2 (en) * 2007-11-23 2014-10-21 Google Inc. Uniquely identifiable keys for electronic keyboards
KR100978662B1 (en) * 2008-09-02 2010-08-30 삼성전기주식회사 Key scan circuit
CN107251437B (en) * 2015-02-20 2020-09-25 金泰克斯公司 Resistor multiplexed switch wake-up circuit
CN106470038B (en) * 2015-08-17 2019-11-05 光宝电子(广州)有限公司 Keyboard scanning circuit, keyboard and its scan method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569149A (en) * 1975-11-11 1980-06-11 Indesit Electronic control device
GB2051519A (en) * 1979-04-30 1981-01-14 Standard Telephones Cables Ltd Telephone keyset
EP0134853A1 (en) * 1983-09-14 1985-03-27 AMP INCORPORATED (a New Jersey corporation) Means for decoding a switch array
US4725816A (en) * 1984-12-10 1988-02-16 John Fluke Mfg. Co., Inc. Matrix keyboard encoder circuit
US4918634A (en) * 1987-02-23 1990-04-17 Minolta Camera Kabushiki Kaisha Key input apparatus
US5057699A (en) * 1989-12-20 1991-10-15 Allied-Signal Inc. Switch interface for determining position of a plurality of switches using a determined time

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463221A (en) * 1981-04-01 1984-07-31 Midian Electronics, Inc. Automatic radio telephone encoder/decoder
US4467140A (en) * 1981-05-01 1984-08-21 Masco Corporation Of Indiana Microprocessor-based cordless telephone system
US4616213A (en) * 1983-01-14 1986-10-07 Polytel Corporation Capacitive multikey keyboard for inputting data into a computer
DE3312153A1 (en) * 1983-04-02 1984-10-04 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth METHOD AND CIRCUIT FOR KEY REQUEST
JPH07109572B2 (en) * 1984-02-29 1995-11-22 東京プレス工業株式会社 Capacity keyboard
CA2048458C (en) * 1990-08-07 1995-02-14 Hisamitsu Takagi Portable telephone set
KR930008505Y1 (en) * 1991-05-04 1993-12-22 주식회사 금성사 Key input circuit of micro computer
US5621402A (en) * 1993-07-21 1997-04-15 Advanced Micro Devices, Inc. Keypad scanner
US5719597A (en) * 1994-01-28 1998-02-17 Vtech Electronics, Ltd. Apparatus for scanning user input devices
US5534860A (en) * 1994-05-02 1996-07-09 Phillips; Joseph E. Multiple key array
US5619196A (en) * 1995-12-28 1997-04-08 Universal Electronics Inc. Single wire keyboard encode and decode circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569149A (en) * 1975-11-11 1980-06-11 Indesit Electronic control device
GB2051519A (en) * 1979-04-30 1981-01-14 Standard Telephones Cables Ltd Telephone keyset
EP0134853A1 (en) * 1983-09-14 1985-03-27 AMP INCORPORATED (a New Jersey corporation) Means for decoding a switch array
US4725816A (en) * 1984-12-10 1988-02-16 John Fluke Mfg. Co., Inc. Matrix keyboard encoder circuit
US4918634A (en) * 1987-02-23 1990-04-17 Minolta Camera Kabushiki Kaisha Key input apparatus
US5057699A (en) * 1989-12-20 1991-10-15 Allied-Signal Inc. Switch interface for determining position of a plurality of switches using a determined time

Also Published As

Publication number Publication date
EP0695041A3 (en) 1996-07-03
EP0695041A2 (en) 1996-01-31
GB9415066D0 (en) 1994-09-14
US5983116A (en) 1999-11-09
GB2291762A (en) 1996-01-31

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030726